为提高牧草的经济效益,中国农科院土肥所豆科牧草根瘤菌组近两年在18个省、市、区对12种豆科牧草种子丸衣化接种根瘤菌进行了飞播试验,1982—1983年试验面积共60万苗,效果显著。据内蒙和云南鉴定会现场调查:飞播丸衣化接种根瘤菌可使沙打旺产量提高62—106.9%,每年每亩多收干草150—280斤,增收7.5—14元;可使三叶草产量提高44.3%,每年每亩增产鲜草1280.6斤,获益25.6元。 In order to improve the economic benefits of forage grass, the rhizobia of 12 Leguminous pasture seeds were inoculated by Rhizobium sp. In 18 provinces, cities and districts in the recent two years by the soil gramineous rhizobium group of Chinese Academy of Agricultural Sciences. 1983 test area a total of 600000 seedlings, the effect is remarkable. According to the survey conducted by Inner Mongolia and Yunnan Identification Society, Feiyan Pill can inoculate rhizobia can increase 62-106.9% yield of sativa, 150-280 kg of harvested hay per mu every year, an increase of 7.5-14 yuan, and the yield of clover can be increased 44.3%, yielding 1280.6 kg fresh grass per acre, benefit 25.6 yuan.